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Loud high pitch feedback when audio plays

I removed the battery and unplugged the laptop and the loud high pitch screeching finally stopped. But suddenly, the last couple of days whenever audio, any audio on the laptop plays the high pitched feedback starts again and doesn't stop. I checked all audio devices and it says that everything is working properly. I can't tell where this noise is coming from or how to fix it. A Microsoft help search also had no answer for this.

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  • 4 Answers

I can only think of tree possibilities:


1. Feedback created by a dry join on a circuit board
2. Feedback from a cooling fan that has malfunctioned
3. Feedback from a microphone that has malfunctioned

I would try disabling or fiddling with the settings on the microphone first, if that's the problem, I recommend you disable it and if you use a microphone regularly, the external alternative is quite a cheap way of replacing it, if its a cooling fan, and you have the knowledge to disassemble the laptop, try disconnecting it for a short time, if the feedback stops when you disconnect the fan, you need only replace the fan, if these two methods don't solve the problem, I would recommend you have a professional look at it for you, dry joins are quite hard to find and require special equipment to fix, and if that's not the issue, the professional should be able to find the problem anyway.

Good luck

Posted on Mar 13, 2013

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Benimur
  • 6966 Answers

SOURCE: high pitch noise

Hi,

For laptop repairs & parts, pls try here. Not really that hard a fix but major concern is how soon do you get the parts and how to confirm your diagnosis.

You may want to consider other possibilities such as:
1. mechanical problem (fan motor bearing, CD/DVD spindle, HD platter; and/or
2. CCFLamp inverter.

Hope this be of some help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Posted on Nov 14, 2007

SOURCE: loud noise when closing lid

its audio speaker,

Posted on May 12, 2008

dassinger
  • 8 Answers

SOURCE: High pitch noise coming from laptop

Likely it is the system cooling fan or processor cooling fan so check to see if you would like to put it back under a manufacturer warranty if possible or whether you have the skill to review, follow, and carefully open up and inspect and clean and reassemble your notebook PC. What price is it worth to you to fix this problem - the downtown computer retailer that sells CDs and PCs and appliances will charge you to fix it. Again, most likely it is a simple small fan inside the PC. It could just have lint, dust, fuzz in it and after a clean out could work quietly again. The CPU cooling fins or cooling fan blades after cleaning will allow the CPU or system to operate more coolly, and then the fan RPM could drop a bit and the notebook PC whining sound may decrease. Oh, finally, putting the notebook PC on a grate or grill or a notebook cooling ventilation platform could alleviate the problem if it is just lint or dust.

Posted on Jun 05, 2008

  • 111 Answers

SOURCE: Laptop gives off a high pitched screech ONLY upon start ups

Assure there a no disks in your CD/DVD drive

Make sure there is nothing blocking the fan

Feel the base of you laptop and assure it is cool

Do not block off air flow

Event Viewer: Click the Start button . In the Search box, type Event Viewer, and then, in the list of results, double-click Event Viewer.

Go to the Sytem Tab - Look for any errors that seem noteworthy


Post your results

Posted on Jan 07, 2009

  • 6771 Answers

SOURCE: My Acer Aspire 5100 laptop

The problem might be the power supply charger that plugs into the laptop, unplug the charger and run the laptop on battery power, is the high pitch sound there when you power up? if this solves the problem, it is the power supply charger that is the cause.

Posted on Jan 08, 2011

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